Improvement in vapor-stoves



N0.- @25103. PATBNTBD MAR. 29, 1864.

0. F. MORRILL.

VAPOR STOVE.

UNITED .STATES PATENT OFFICE.

' oSCAn E. Montani., on CHELSEA, MASSACHUSETTS.

IMPROVEMENT IN vAeoa-slTovEs.

Specification forming part of Letters Patent No. 42,103., dated March29, 1564.

To all whom z't-may concern:

Be it known that I, OSCAR F.- MonnILL, a resident of Chelsea, in thecouuty'of Suffolk and State of Massachusetts, have made an invention ofcertain new and useful Improvements inApparatusfor Generating Heat forCulinary or Various other Purposes; and I do and a suitable number oflegs, b b, extending,

therefrom.- Withinpthis stand there is arranged an aerovapor burner, B,which consists of atube, c, which is open at its lower end, and at itsupper end is capped by a foraminous plate or wire-gauze diaphragm, d,over which there is a perforated chimney, e, which extends through thepart a concentricall y and rises above it, as shown in Fig. 2. RaisedSonne distance above this stand there isa reservoir or close chamber orvessel, C, for holdvin g petroleum naphtha, or carbon spirits, or anyliquid easilyvaporizable and combustible,.the said vessel C beingsupported by'a conduit or tube, D, which not only passes'entirelythrough and extends a short distance above the said vessel, but alsoextends downward from it toward the stand A and through4 a block ofwood, E, (or some other suit-able noaconductor ot"hcat,) held in placeby means of an arm or projection, F, fastened to and extended from thesaid stand'. The purpose of the block E, which I term-the insu'lator, isto so insulatethe conduit from the stand-asl to prevent the heat ofthelatter, when the' apparatus may be in use, from being so absorbed by theconduit as to vaporize the liquid which may be flowing down the verticalpart of it. A From the said insulator the conduit extends horizontallyunderneath the tablet c and over the foraminous diaphragm of the burner,and thence down alongside of the exleerior surface of the said burner,and thence.

isca-rried horizontally into the .lower part of the burner and opensinto a vertical jet tube or receiver, Gr. At its upper end thesaidreceiver has a very sinall ednctionoritice,

which is conical, to receive a conical valve, y, whose stem is furnishedwith an elevatingscrew, h, and a pronged wheel, t', arranged as shown inFig. 2. The said screw is tapped in to'the receiver" G, and when turnedin one direction will elevate the valve toward its seat or the openingf. The screw, when revolved in the opposite direction, will depress thevalve. At the bend k of the couduitD there is another such valve andvalve-seat, the same being shown at Z and m in Fig. 2v, the stem n ofthe valve being extended up through vand out of the standard or longerverticalpart of the conduit, as shown in the drawings. Such stem, atitsupper end, is provided with a hand-wheel, o, by which it may berevolved. The hub of the hand-wh`eel is recessed to lit around and screwupon the upper part of 'and constitute a cap to the conduit, as shown atp in Fig. 2.' Furthermore, the reservoir C is furnished with allingorice, q, provided with a screw cap, r, andthere are two holes, st, made through that part of the conduit D which is withiny thereservoir C,

one of-these holes, s, being near the top, and the other, t, being nearthe bottom, of the reservoir. Surrounding the chimney is a sepa ratecasing, I, having lnumerous holes, `'u ul u, made throughits sides. 'Itis through these 'hoies that the spent volatile products or gases maketheir escape 'after having actedV on the vessels or apparatus which maybe arranged over the chimney. The casi-ng I has a contracted-neck,'v,made to receive another casf ing or. boiler-supporter, K, which restsupon it, and is rformed as shown in the drawiiyigs.

vrlhe said'boilerlsul'iporter K isprovided with',

one or more rings, zc, and a-ciicnla'r cover'or plate, The second ringlaps on the iirst ring, and in its turn is lapped' on bythe third ring,lwhich is also lapped on by thel'cover, the whole being arrangedconcentrically and formed as showiiiu the drawings, and particularly inFig. 3. W'lieli the rings and cover are in place, they serve to coverthe opening in the top of the'boiler-supporter,and may 'be used forsustaining one or more sad-irons or other articles or vessels to beheated by the flame of the burner. By' removing the cover from the innerring, we shall have an opening either for insertion of a kettle, boiler,or 'pan' into the lat-ter, or for the adinission'of neat directly to apan or vessel when placed on the said ring. So,by removing the second,or second and third, rings from the rest of the apparatus, largeropenings may be formed forvalve is also employed to regulate the dis-vcharge of vapor therefrom, theheght of the `dame may be adjusted and theapparatus will A operate to much better advantage than with l but onevalve.

Furthermore, by having the conduit, extended into, through, and out ot'the reservoir in manner as specified, and pro viding the conduit withthe ex'tra hole, s,ar

ranged nearthe top of the reservoir, any fluidwithin the conduit willAnot be liable to be expelled from or driven out of the top of thecmduit; but when back iiowage, occasioned by theV pressure of the gas orvapor in the vaporizer, may ta'ke place, such fluid will be driventhrough the hole s and back into the reservoir. i Y

The arrangement of the lvalve rod or stem n within the conduit v1) inmanner as shown in Fig. 2.11ct only imparts strengthto the conduit, butenables the Ihand-wheel to'answer the twofold'purpose of a cap to theconduit and a means of rotating the valve-stem.l Byhaving thc reservoirCeleva-ted above the burner or iixed on a conduit rising some dis--tance above the stand,I am enabled to obtain a head or pressure ot' theiiuid in the conduity 'advantageous to its emission through themailtvalveopening and into the "aporizer, I would also remark that,instead of carrying the conduit straight over the burner, it may becurved more or dess, so as to increase the heating-surfacc ot' it. Iwould further state that, in consequence of the position of thehand-wheel and its valve-stem n there is not the' danger of leakage thatthere would be with a faucet-valve arranged atV the head vof theconduit.

I would also remark thatinstead of extending the conduit up into orthrough'the reser- Voir,4 I sometimes arrange theconduit so as not togoythrough or up `into it, but to' open out of .its bottom, as shown inFig. 4. This, however, does not present the'l advantage of the extensionof the conduit from top to 'bot.

extension of the conduit through the reservoir. I 'would further remarkthat the manner of combining lthe hand-wheel o of the valve-stein n.with the conduit' B-that is to say, by re- 4cessing the'handfwhecl andscrewing it on the top ot' the conduit-Ilot only provides a means ofregulating the valve independently-of the reservoir, but causes the hubof the hand- Whecl to serve as a cap 4to the openingat the top ot' thereservoir or as a means of closing the same. I would further remark thatit is often the case that while the valve may be open the formation andpressure of combustible vapor within the vaporizer or conduit may not be'suticient to carry the effluent stream up through thew'ire-gauzeorforaminous top ofthe burner. It will therefore be seen that were thereno valve at the oritice of discharge, it would sometimes happen that thestream of combustible vapor passing out of the conduit orvaporizer wouldnot press upward with the force required to have it properly rushthrough the foraminous top' ot the burner, but with an adjustable valvethe sizeV of the opening of discharge may be so regulated or diminishedas to cause the vapor to ascend with theforce and to the heightrequired. This will be so particularly when there may be but a smallportion of the fluid iiowing into the vaporizer.

- Having thus described my said apparatus, what Lclaim therein as myinvention is as follows, viz':

1. The' arrangement of the valve-stem, reservoir, conduit, and-handwheel when the conduit is extended into and through the reser voir.i

2. The extension of the said stem and conf duit lthrough and beyond thereservoir, and providing the conduit with the extra hole s,

vthe whole being substantially as specified;

3.. The combination ot the auxiliary valve g and -its actuatingmechanism, (screw h and whee1z',) or their equivalent-s, with theaerovapor burner, as described, its conduit D, reservoir C, its mainvalve l, and an actuating mechanism, so made and-applied to the valvelas to be so separate and distinct from the actuating mechanism of theauxiliary valve g as to enable either of such actuating mechanf' isms,with 'its valve, to be operated or putin operation without at the sametime effecting any movements of' the other of the said actuatingmechanisms and its valve, the whole being arrangedA substantially asdescribed.

4. The combination of the' hand-wheelo of the valve-stein n with theconduit D, substantially in manner and so as to serve the purposesasspccitied, the hand-wheel under such circumstances being recessed andscrewed on the conduit, instead of Vthe 4valve-rod bein g screwed.intothe reservoir.

t 5. In combination andarrangement with an aerovapor burner,substantially as described, and its luid-vaporizer, or means ofconverting the hydrocarbon fluid into a vapor, the adtiff;

(ivf

liti

"justable valve g and its seat, .thes'ame being for the purposel ofenabling the vapor to he 4ejected out of 4he vaporizer to a heightsuicealtnto enable it to pass up ,through the wire- -gauze diaphragm ofthey air and vapor mixer vaporizer and aerovapor hurner'u'ith auva'lveto regulate' the escape of vapor, under an arrangement to operate in themanner and for the purposes set fortl.

8. The combination of a fluid reservoir and vaporizer, the aerovaporburner, and the requisite valves to regulate the supply ofvuid and theescape of Vapor, together with a stove or support for Vessels `orarticles' to be heated. OSCAR F. Motorini..

Witnesses.:

R. H. EDDY, 112.1. H ALE, Jr.

